Portable programming and testing tool



FIG. 1 is a perspective view of a portable programming and testing tool showing our new design;

FIG. 2 is a rear view thereof on a reduced scale;

FIG. 3 is a bottom view thereof on a reduced scale;

FIG. 4 is a right side view thereof on a reduced scale.

The reference numerals and numbers in the drawing figures are for illustrative purposes only. 

The ornamental design for a portable programming and testing tool, substantially as shown and described. 